package cn.songtx.iot.service;

import cn.songtx.iot.pojo.DeviceEm;
import com.baomidou.mybatisplus.extension.service.IService;

import java.util.Map;

public interface IDeviceEmService extends IService<DeviceEm> {

    // 自定义Service接口,根据年月查询当月峰谷电数据
    Map<String, float[]> selectPeakValleyElectricByMonth(String mac, String year, String month);
}
